优质DiSEqC2.0卫星4x1切换开关批发价格

较简单的开关有二片名叫“触点”的金属，二触点接触时使电流形成回路，二触点不接触时电流开路。选用接点金属时需考虑其对抗腐蚀的程度，因为大多数金属氧化后会形成绝缘的氧化物，使接点无法正常工作。
按照用途分类：波动开关，波段开关，录放开关，电源开关，预选开关，限位开关，控制开关，转换开关，隔离开关，行程开关，墙壁开关，智能防火开关等。
按照结构分类：微动开关，船型开关，钮子开关，拨动开关，按钮开关，按键开关，还有时尚潮流的薄膜开关、点开关。
按照接触类型分类：开关按接触类型可分为a型触点、b型触点和c型触点三种。接触类型是指，“操作（按下）开关后，触点闭合”这种操作状况和触点状态的关系。需要根据用途选择合适接触类型的开关。
按照开关数分类：单控开关、双控开关、多控开关、调光开关、调速开关、防溅盒、门铃开关、感应开关、触摸开关、遥控开关、智能开关、插卡取电开关、浴霸**开关。

产品型号：GST-4103
品 名：DiSEqC2.0卫星4x1切换开关
材 质：锌合金压铸
接 口：-5英制F头
产品特点:
锌合金压铸外壳，表面镀镍处理
优质元器件，线路专业设计，损耗小
优质芯片，专业程序设计，兼容更多机型
精美防水塑料外壳，可在室外正常使用
具有DiSEqC 2.0双向控制的全部功能
通过接收机提供DiSEqC指令选择四路卫星信号的器中一路
用一条同轴电缆同时传送控制指令与卫星信号
支持DiSEqC"待机”功能

GST-4103
Model:GST-4103


Connectors:“F”type female


Switching Signal ： DiSEqC
Product features:
Features:


Zinc die-cast housing, nickel-plated


Excellent quality component , professional circuit design and low loss


Excellent quality chip , professional program design and compatible


with more types of satellite receiver


DiSEqC 2.0 , supports bi-directional DiSEqC full control functions


Select one of four satellite **s through DiSEqC commands supplied


from satellite receiver


Utilize one coaxial cable to transmit control instruction and satellite


** simultaneously


Support DiSEqC “standby” command
GST-4103
Model:GST-4103


Connectors:“F”type female


Switching Signal ： DiSEqC


Product features:
Features:


Zinc die-cast housing, nickel-plated


Excellent quality component , professional circuit design and low loss


Excellent quality chip , professional program design and compatible


with more types of satellite receiver


DiSEqC 2.0 , supports bi-directional DiSEqC full control functions


Select one of four satellite **s through DiSEqC commands supplied


from satellite receiver


Utilize one coaxial cable to transmit control instruction and satellite


** simultaneously


Support DiSEqC “standby” command


Parameter description:

Specifications


Item


Specification


Item


Specification


Frequency Range


950-2400(MHz)


Normal Working Voltage


12-20(V)


Insertion Loss


3(dB)


DC Power Consumption


10(mA)


Isolation


20(dB)


DC Max Power Passing


500(mA)


Return Loss


8(dB)


Impedance(all ports)


75(Ω)